lvm extend

huataihuang · Jul 30, 2023 · 9169cb8 · 9169cb8
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diff --git a/source/clang/index.rst b/source/clang/index.rst
@@ -11,6 +11,8 @@ C Atlas
    upgrade_cmake_on_centos7.rst
    upgrade_gcc_on_centos7.rst
    upgrade_gcc_on_suse12.5.rst
+   upgrade_gcc_on_ubuntu22.04.rst
+   parallel_make.rst
 
 .. only::  subproject and html
 

diff --git a/source/clang/parallel_make.rst b/source/clang/parallel_make.rst
@@ -0,0 +1,28 @@
+.. _parallel_make:
+
+======================
+并行make
+======================
+
+我在为 :ref:`build_glusterfs_11_for_suse_12` 做 :ref:`upgrade_gcc_on_suse12.5` ，发现一个麻烦的事情，编译 GCC 实在太耗时了。同事提醒可以修改configure参数，增加多核并行。
+
+我想起来当时编译时确实发现只有一个 ``cc1plus`` 进程运行，完全浪费了多cpu core的高性能服务器资源。当时因为只处理一台编译，也就没有再尝试优化。
+
+没有启用 ``-j XX`` 参数 :ref:`` 耗时:
+
+.. literalinclude:: parallel_make/build_gcc_before_parallel_time
+   :caption: 没有启用 ``-j XX`` 参数之前编译gcc 耗时
+   :emphasize-lines: 1
+
+由于服务器有48个cpu core，所以执行以下命令配置 ``make`` 并行度 ``40`` :
+
+.. literalinclude:: parallel_make/make_j
+
+使用 ``-j 40`` :
+
+.. literalinclude:: parallel_make/make_j_output
+   :caption: 使用40个并发任务执行make可以大大加速编译gcc速度
+
+.. note::
+
+   使用 ``-j`` 参数并发在多处理器服务器上运行编译，可以看到 ``real`` 时间远小于 ``system`` 和 ``user`` 累加的时间。这是因为 ``system`` 和 ``user`` 消耗时间是在多个处理器上累加起来的，多个并发实际完成时间大大缩短 ( ``real`` 时间 )。详见 :ref:`time`
diff --git a/source/clang/parallel_make/build_gcc_before_parallel_time b/source/clang/parallel_make/build_gcc_before_parallel_time
@@ -0,0 +1,3 @@
+real    283m7.795s
+user    270m45.706s
+sys     11m37.685s
diff --git a/source/clang/parallel_make/make_j b/source/clang/parallel_make/make_j
@@ -0,0 +1 @@
+alias make="/usr/bin/make -j 40"
diff --git a/source/clang/parallel_make/make_j_output b/source/clang/parallel_make/make_j_output
@@ -0,0 +1,3 @@
+real    34m54.800s
+user    379m16.856s
+sys     13m35.479s
diff --git a/source/clang/upgrade_gcc_on_centos7/build_gcc b/source/clang/upgrade_gcc_on_centos7/build_gcc
@@ -1,6 +1,6 @@
 version=10.5.0
 
-wget wget http://ftp.tsukuba.wide.ad.jp/software/gcc/releases/gcc-${version}/gcc-${version}.tar.gz
+wget http://ftp.tsukuba.wide.ad.jp/software/gcc/releases/gcc-${version}/gcc-${version}.tar.gz
 tar xfz gcc-${version}.tar.gz
 cd gcc-${version}
 

diff --git a/source/clang/upgrade_gcc_on_ubuntu22.04.rst b/source/clang/upgrade_gcc_on_ubuntu22.04.rst
@@ -0,0 +1,53 @@
+.. _upgrade_gcc_on_ubuntu22.04:
+
+===========================
+Ubuntu 22.04升级GCC
+===========================
+
+其实没有必要在 :ref:`ubuntu_linux` 22.04 上升级GCC，因为发行版提供的 gcc 11.3 已经足够新，支持足够的C feature。不过，我最近在 :ref:`upgrade_gcc_on_suse12.5` 编译GCC非常缓慢，考虑到服务器是多核处理器性能足够强劲，但是依然没有快速完成编译，显然是编译并行没有搞好。所以我想重新在我的 ``zcloud`` 上验证以下并行编译和非并行编译的差异。(对于 :ref:`gentoo_linux` 的 :ref:`emerge` 配置参数有)
+
+- 编译准备: 安装基本GCC toolchain和扩展工具
+
+.. literalinclude:: upgrade_gcc_on_ubuntu22.04/prepare_build_gcc
+   :caption: 编译gcc准备(GCC工具链和扩展工具)
+
+.. note::
+
+   :ref:`ubuntu_linux` `的软件包命名规律和 :ref:`redhat_linux` 不同:
+
+   .. literalinclude:: upgrade_gcc_on_ubuntu22.04/lib_dev
+      :caption: ubuntu 和 CentOS 对开发库包名差异
+
+- 编译安装GCC:
+
+.. literalinclude:: upgrade_gcc_on_ubuntu22.04/build_gcc
+   :caption: 编译gcc
+
+.. note::
+
+   GCC编译非常耗时，建议 :ref:`parallel_make` 
+
+在 ``./configure`` 时，我遇到如下提示信息:
+
+.. literalinclude:: upgrade_gcc_on_ubuntu22.04/configue_info
+   :caption: configure输出信息显示缺少isl和makeinfo
+
+则需要补充安装::
+
+   # textinfo提供makeinfo
+   # libisl-dev提供isl
+   sudo apt install texinfo libisl-dev
+
+参考
+======
+
+- `Building GCC 10 on Ubuntu Linux <https://solarianprogrammer.com/2016/10/07/building-gcc-ubuntu-linux/>`_
+- `What is makeinfo, and how do I get it? <https://stackoverflow.com/questions/338317/what-is-makeinfo-and-how-do-i-get-it>`_
+- `Prerequisites for GCC <https://gcc.gnu.org/install/prerequisites.html>`_ ::
+
+   isl Library version 0.15 or later.
+   Necessary to build GCC with the Graphite loop optimizations. It can be downloaded from https://gcc.gnu.org/pub/gcc/infrastructure/. 
+   If an isl source distribution is found in a subdirectory of your GCC sources named isl, it will be built together with GCC. 
+   Alternatively, the --with-isl configure option should be used if isl is not installed in your default library search path.
+
+- `isl package in Ubuntu <https://launchpad.net/ubuntu/+source/isl>`_
diff --git a/source/clang/upgrade_gcc_on_ubuntu22.04/build_gcc b/source/clang/upgrade_gcc_on_ubuntu22.04/build_gcc
@@ -0,0 +1,9 @@
+version=13.2.0
+
+wget http://ftp.tsukuba.wide.ad.jp/software/gcc/releases/gcc-${version}/gcc-${version}.tar.gz
+tar xfz gcc-${version}.tar.gz
+cd gcc-${version}
+
+./configure --disable-multilib --enable-languages=c,c++
+make
+sudo make install
diff --git a/source/clang/upgrade_gcc_on_ubuntu22.04/configue_info b/source/clang/upgrade_gcc_on_ubuntu22.04/configue_info
@@ -0,0 +1,9 @@
+...
+required isl version is 0.15 or later
+*** This configuration is not supported in the following subdirectories:
+     gnattools gotools target-libada target-libphobos target-zlib target-libbacktrace target-libgfortran target-libgo target-libffi target-libgm2 target-libobjc
+     (Any other directories should still work fine.)
+...
+checking for makeinfo... no
+/home/huatai/docs/gcc/gcc-13.2.0/missing: 81: makeinfo: not found
+...
diff --git a/source/clang/upgrade_gcc_on_ubuntu22.04/lib_dev b/source/clang/upgrade_gcc_on_ubuntu22.04/lib_dev
@@ -0,0 +1,3 @@
+gmp-devel    ==> libgmp-dev
+mpfr-devel   ==> libmpfr-dev
+libmpc-devel ==> libmpc-dev
diff --git a/source/clang/upgrade_gcc_on_ubuntu22.04/prepare_build_gcc b/source/clang/upgrade_gcc_on_ubuntu22.04/prepare_build_gcc
@@ -0,0 +1,3 @@
+sudo apt install build-essential wget m4 flex bison \
+    libgmp-dev libmpfr-dev libmpc-dev \
+    textinfo libisl-dev
diff --git a/source/devops/docs/kindle/read_e-books_after_kindle.rst b/source/devops/docs/kindle/read_e-books_after_kindle.rst
@@ -4,6 +4,9 @@
 后Kindle时代阅读电子书
 ========================
 
+个人的电子书同步
+==================
+
 随着亚马逊Kindle电子书退出中国市场，给我们阅读又带来了更多的不便。作为技术工作者以及渴望 :ref:`open_your_mind` ，需要有一个自由阅读的解决方案:
 
 我在跨 :ref:`macos` 和 Linux 平台工作时，非常关注如何同步电子书以及在跨平台阅读的方案。最初我向选择苹果的iCloud，也就是采用苹果 ``Books`` 工具云端存储电子书:
@@ -23,3 +26,13 @@ Google则侧重于WEB应用，所有Android上的Google全家桶都提供了WEB
 - 在Linux平台使用 :ref:`google_play` 在线阅读以及下载到本地采用轻量级 :ref:`read_ebook_in_linux`
 
 - 在手机上主要采用Google Books来进行电子书阅读
+
+使用哪个平台?
+===============
+
+其实Kindle退出中国，最大的影响是如何找到和购买正版电子书:
+
+- 虽然可以通过搜索引擎找到很多免费资源，但是非正版带来的困扰是: 你必须花费大量的时间和精力来甄选，无法在一个平台获得良好、统一的阅读体验
+- 专业中文书籍后续是一个难题，没有出版社支持的话，中文专业书籍会更加下滑
+
+我现在还不知道该选用哪个平台， `V2EX: 中亚 kindle 停止电子书运营后还有哪些替代方案 <https://www.v2ex.com/t/856951>`_ 提到了 zlib ...
diff --git a/source/kubernetes/istio/index.rst b/source/kubernetes/istio/index.rst
@@ -10,5 +10,7 @@ Istio服务网格
    istio_architecture.rst
    istio_startup.rst
    istio_bookinof_demo.rst
+   istio_integrations.rst
+   kiali.rst
    traffic_management/index
    envoy/index
diff --git a/source/kubernetes/istio/istio_integrations.rst b/source/kubernetes/istio/istio_integrations.rst
@@ -0,0 +1,16 @@
+.. _istio_integrations:
+
+===========================
+Istio集成第三方软件
+===========================
+
+Istio通过集成第三方开源软件提供了强大的能力:
+
+- :ref:`cert-manager`
+- :ref:`kiali`
+- :ref:`skywalking`
+
+参考
+=====
+
+- `Istio Documentation > Operations > Integrations <https://istio.io/latest/docs/ops/integrations/>`_
diff --git a/source/kubernetes/istio/kiali.rst b/source/kubernetes/istio/kiali.rst
@@ -0,0 +1,5 @@
+.. _kiali:
+
+==============
+kiali管控面板
+==============
diff --git a/source/kubernetes/monitor/index.rst b/source/kubernetes/monitor/index.rst
@@ -17,6 +17,7 @@ Kubernetes监控
    mixins/index
    opentelemetry/index
    jaeger/index
+   skywalking/index
    signoz/index
    node_health/index
    netdata.rst

diff --git a/source/kubernetes/monitor/skywalking/index.rst b/source/kubernetes/monitor/skywalking/index.rst
@@ -0,0 +1,11 @@
+.. _skywalking:
+
+======================
+Apache SkyWalking
+======================
+
+.. toctree::
+   :maxdepth: 1
+
+   intro_skywalking.rst
+
diff --git a/source/kubernetes/monitor/skywalking/intro_skywalking.rst b/source/kubernetes/monitor/skywalking/intro_skywalking.rst
@@ -0,0 +1,17 @@
+.. _intro_skywalking:
+
+=======================
+Apache SkyWalking简介
+=======================
+
+起源
+=======
+
+`Apache SkyWalking开源项目 <https://skywalking.apache.org/>`_
+
+参考
+=====
+
+- `Skywalking 中文资料 <https://skywalking.apache.org/zh/>`_ (京东有电子书 `Apache SkyWalking实战 <https://e.jd.com/30640502.html>`_ )
+- `吴晟：SkyWalking 与 Apache 软件基金会的那些事 | DEV. Together 2021 中国开发者生态峰会 <https://developer.aliyun.com/article/805796>`_
+- `Apache 首位华人董事吴晟谈开源：我对中国开源短期内是消极的 <https://developer.baidu.com/article/detail.html?id=294099>`_
diff --git a/source/linux/storage/filesystem/index.rst b/source/linux/storage/filesystem/index.rst
@@ -10,13 +10,14 @@ Linux文件系统
    gpt_partition.rst
    parted.rst
    choice_linux_filesystem.rst
-   xfs/index
-   ext/index
-   quota/index
+   reserved_space_for_root_on_filesystem.rst
    linux_overlayfs.rst
    remount_without_reboot.rst
    fstrim.rst
    chattr.rst
+   xfs/index
+   ext/index
+   quota/index
 
 .. only::  subproject and html
 

diff --git a/source/linux/storage/filesystem/reserved_space_for_root_on_filesystem.rst b/source/linux/storage/filesystem/reserved_space_for_root_on_filesystem.rst
@@ -0,0 +1,10 @@
+.. _reserved_space_for_root_on_filesystem:
+
+=========================
+文件系统为root保留空间
+=========================
+
+参考
+======
+
+- `Reserved space for root on a filesystem - why? <https://unix.stackexchange.com/questions/7950/reserved-space-for-root-on-a-filesystem-why>`_